Reference for Eruvin 199:12
ולא יעלה באילן מבעוד יום וישב שם כל היום כולו אחד אילן ואחד כל הבהמה אבל בור שיח ומערה וגדר מטפס ועולה מטפס ויורד ואפילו הן מאה אמה
while the latter refers to one who did it after dusk.<span class="x" onmousemove="('comment',' In the former case, since his ascent involved no transgression, no penalty was imposed upon him.');"><sup>36</sup></span> If you prefer I might reply: Both refer to all ascent after dusk and yet there is no difficulty, since the one refers to an unwitting act while th other refers to an intentional one.<span class="x" onmousemove="('comment',' Cf. prev. n. mut. mut.');"><sup>37</sup></span> If you prefer I might say: Both refer to an unwitting act, but the principl underlying their divergence of view is the question whether a penalty has been imposed in respect of an unwitting act as a precaution against the performance of an intentional act. One Master<span class="x" onmousemove="('comment',' The author of the latter Baraitha.');"><sup>38</sup></span>